Solve the system of equations 2x-y=1; x+2y=8 graphically and find the coordinates of the points where corresponding lines intersect y-axis.
Symbol
Search
App Store
Google Play
Calculator search results
Solve the equation
Answer
See the solving process
Graph
See details
$y = - 7 + x$
$y = 2$
$x$Intercept
$\left ( 7 , 0 \right )$
$y$Intercept
$\left ( 0 , - 7 \right )$
$x = 9$
$ $ Solve a solution to $ x$
$\color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ + } \color{#FF6800}{ x } = 2$
$ $ Organize the expression $ $
$\color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 7 } = 2$
$x \color{#FF6800}{ - } \color{#FF6800}{ 7 } = 2$
$ $ Move the constant to the right side and change the sign $ $
$x = 2 \color{#FF6800}{ + } \color{#FF6800}{ 7 }$
$x = \color{#FF6800}{ 2 } \color{#FF6800}{ + } \color{#FF6800}{ 7 }$
$ $ Add $ 2 $ and $ 7$
$x = \color{#FF6800}{ 9 }$
Solution search results
$11\right)$ Which of the following $15$ a surd? $a\right)\sqrt{81} $ $b\right)\sqrt{25} $ $c\right)$ $\sqrt{16} $ $d\right)$ $\sqrt{125} $ B) $1$ Solve the following activity. $|x-5|=7$ $x-5=\square 7$ $x-5=7ORx-5==$ $x=7\square 5$ $OR$ $x=-7+$ $x=12ORx=$
7th-9th grade
Geometry
Check solution
i) d vufu of Compare the following pair of the surds. a) 2V7, V28 $b\right)6\sqrt{3} .3\sqrt{12} $ ii) Simplify the following surds. a) V75 b) V80 ii) Add the polynomials $2y^{2}+7y+5:3y+9,3y^{2}-4y-3$ Q. 2. $A\right)C$ $oosθ$ the correct alternative $i\right)mc\dfrac {P} {a}tom$ of 0.16 is b) 97000 0 ii) Which of the following is a surd? a) V81 $b\right)\sqrt{25} $ c) V16 $d\right)\sqrt{125} $ B) Solve the following activity. $|x-5|=7$ $x-5=1$ 7 $x-5=7ORx-5=-\square $ $x=7$ $5OR$ $x=-7+$ $x=12ORx=\square $ Q. 3. Solve the problems (Any two) i) a) Multiply the fraction b) Divide the fraction $\sqrt{12} \times 5\sqrt{15} $ $\sqrt{125} +\sqrt{50} $ ii) Rationalize the denominator b) $in\right)|\dfrac {9-x} {3}|=6$ Q. 4. Solve the following problems $\left(Anyonc\right)$ i) $7\sqrt{48} -\sqrt{27} -\sqrt{3} $ $4\sqrt{12} -\sqrt{75} -7\sqrt{48} $ ii)
7th-9th grade
Geometry
Check solution
$s$ $x^{3}+5x^{2}-32x-7+x-4$
10th-13th grade
Algebra
Check solution
$△30$ $\dfrac {3} {7}+x=\dfrac {17} {7}$
10th-13th grade
Other
Check solution
$\left(1\right)$ $17+x=5$
1st-6th grade
Algebra
Check solution
$\right)$ $x-$ $\right)$ $\dfrac {3} {7}+x=\dfrac {17} {7}$
7th-9th grade
Algebra
Check solution
Have you found the solution you wanted?
Try again
Try more features at Qanda!
Search by problem image
Ask 1:1 question to TOP class teachers
AI recommend problems and video lecture
App Store
Google Play
© 2021 Mathpresso Inc.
|
CEO Jongheun Lee, Yongjae Lee
|
17th Floor, WeWork Seolleung Station III, 428, Seolleung-ro, Gangnam-gu, Seoul
|
EMAIL support.en@mathpresso.com